BootsofLagrangian/laion-pop-webp90-min256px-noresize

LAION-POP WebP90 min256px no-resize

This gated repository is an image-bearing LAION-POP materialization assembled for research reproducibility because a suitable image-bearing release was not available for the required research workflow. It contains 430,081 readable images in WebDataset tar shards and a combined 554,026-row metadata Parquet. This includes complete samples recovered from locally truncated shards; it does not invent metadata for unreadable tails.

The URL metadata came from laion/relaion-pop. Images were retrieved from the recorded URLs with img2dataset. A user who needs a fresh materialization should obtain the URL metadata there and run img2dataset directly.

Images that passed download, decode, and minimum-size checks were converted to WebP quality 90. Images were not resized to a fixed resolution and no 4-megapixel cap was applied. This is why the image-bearing release differs from the URL-only source metadata.

The original crawl attempted 580,128 URLs and recorded 444,756 successes across 128 shards. Eleven shards had truncated tar and Parquet tails. Complete internal webp + json + txt samples from those shards were rewritten into valid tars, recovering 23,776 images without any external re-download. The remaining 14,675 recorded successes and other unavailable tail rows remain holes. Users needing them should obtain the URL metadata from laion/relaion-pop and run img2dataset directly. This repository does not claim to be a complete copy of the source URL list.

Materialization accounting

outcome	rows	attempted URLs
success in original validated shards	406,305	70.04%
complete internal samples recovered from truncated shards	23,776	4.10%
HTTP 4xx	70,720	12.76%
DNS	16,458	2.97%
timeout	10,921	1.97%
decode	9,572	1.73%
HTTP 5xx	5,676	1.02%
TLS/certificate	4,795	0.87%
other download/processing	3,221	0.58%
too small (<256 px)	2,437	0.44%
HTTP 3xx	142	0.03%
HTTP 9xx	2	0.00%
HTTP 6xx	1	0.00%
recorded failures retained from validated shards	123,945	21.37%
unavailable tail rows (success or failure metadata)	26,102	4.50%

The metadata fields wds_shard, wds_member, and image_present bind successful rows to images/<wds_shard>.tar. Failed rows deliberately remain in metadata with their native status and error_message values.

Loading metadata or images

import os
from datasets import load_dataset

repo = "BootsofLagrangian/laion-pop-webp90-min256px-noresize"
read_token = os.environ["HF_READ_TOKEN"]

metadata = load_dataset(repo, "metadata", split="train", streaming=True, token=read_token)
metadata_row = next(iter(metadata))
print(metadata_row["url"], metadata_row["wds_shard"], metadata_row["wds_member"])

images = load_dataset(
    "webdataset",
    data_files={"train": [f"hf://datasets/{repo}@main/images/*.tar"]},
    split="train",
    streaming=True,
    token=read_token,
    storage_options={"token": read_token},
)
sample = next(iter(images))
image_field = next(name for name in ("webp", "jpg", "jpeg", "png") if name in sample)
image = sample[image_field]
source_record = sample["json"]

Replace main with a commit hash when a frozen revision is required. Access to the image stream requires approval for this gated repository.

Access and use are limited to research reproducibility. Each individual image remains subject to the rights held by the owner of its source URL. By downloading or using an image, the user acknowledges those third-party rights and accepts responsibility for determining whether the intended research use is permitted. Gating grants no image rights, and no dataset-wide image-license claim is made. Takedown requests should be sent through the repository owner's Hugging Face contact channel.